Bad-boy boxing champ Adrien Broner faces assault and robbery charges, accused of knocking out a man following a high-stakes bowling game and taking cash from his pocket while he was unconscious.

The alleged incident occurred Jan. 21 outside a bowling alley in Broner’s hometown of Cincinnati. The Cincinnati Enquirer reported police issued a warrant for Broner’s arrest, but he was not in custody as of Friday morning. A lawsuit focusing on the incident reportedly also was filed two months ago.

According to TMZ, the alleged victim told police Broner had lost thousands of dollars to him in bowling bets, and became enraged when he decided to leave. Broner allegedly jumped him outside the lanes, threatened him with a gun, then knocked him unconscious with another closed-fist punch. Court documents say Broner is accused for taking $12,000 from the man’s pocket.

The 26-year-old is scheduled to defend his junior welterweight title in one week — against England’s Ashley Theophane in Washington, DC on April 1. Broner, often compared to Floyd Mayweather for his outlandish promotional style and sordid history of outside-the-ring incidents, is 31-2 lifetime with 23 knockouts.